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The Effects of a Series of 9-Alkylpurines on the Growth of Sensitive and 6-MP-resistant H.Ep. #2 Cells

George G. Kelley, Glynn P. Wheeler and John A. Montgomery
George G. Kelley
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Glynn P. Wheeler
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John A. Montgomery
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DOI:  Published April 1962
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Summary

A systematic study of the activity of 6-mercaptopurine, hypoxanthine, adenine, and 6-chloropurine substituted at the 9-position with normal alkyl and cycloalkyl groups indicates that the butyl, pentyl, cyclopentyl, hexyl, cyclohexyl, heptyl, and octyl derivatives of these purines exerted an inhibitory effect on a line of H.Ep. #2 sensitive to MP and on two sublines resistant to MP. Additionally, the data indicate that generally the MP-1 line was inhibited by the 9-alkylpurine derivatives to a greater degree than was the MP-2 line. Although both of the resistant lines were more sensitive to the short-chain normal alkyl derivatives and all the cycloalkyl derivatives than was the parent line, there was little difference in the sensitivity of all three of the cell lines to the longer-chain normal alkyl derivatives. Of the compounds tested, the most effective were the cyclohexyl derivatives, which were consistently more inhibitory against all three of the cell lines. Except for the long-chain normal alkyl purines, the derivatives of MP were more inhibitory than the corresponding alkyl derivatives of hypoxanthine, which, in turn, were more inhibitory than the corresponding derivatives of adenine and chloropurine.

Footnotes

  • ↵* This work was supported by the Cancer Chemotherapy National Service Center, National Cancer Institute, under the National Institutes of Health Contract No. SA-43-ph-2433, and by grants from the Charles F. Kettering Foundation and the Alfred P. Sloan Foundation.

  • Received October 1, 1961.
  • ©1962 American Association for Cancer Research.
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April 1962
Volume 22, Issue 3
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The Effects of a Series of 9-Alkylpurines on the Growth of Sensitive and 6-MP-resistant H.Ep. #2 Cells
George G. Kelley, Glynn P. Wheeler and John A. Montgomery
Cancer Res April 1 1962 (22) (3) 329-333;

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The Effects of a Series of 9-Alkylpurines on the Growth of Sensitive and 6-MP-resistant H.Ep. #2 Cells
George G. Kelley, Glynn P. Wheeler and John A. Montgomery
Cancer Res April 1 1962 (22) (3) 329-333;
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Cancer Research Online ISSN: 1538-7445
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